Liquid dispensing pump



' means.

Patented Dec. 17, 1935 PATENT OFFICE LIQUID DISPENSING PUMP Frank Brogniez and Harold W. Fletcher, Houston,

Tex., assignors to Hughes Tool Company, Houston, Tex., a corporation of Texas Application April 24, 1934, Serial No. 722,068

Claims.

Our invention relates to'hand operated pumps for use in liquid receptacles to dispense the liquid therefrom. It is particularly adapted for use on containers for beer and the like although it is capable of general use.

It is an object of the invention to provide a simple and compact pump which may be economically mounted upon a beer container and serve.

to pump up air pressure in the container to force the beer therefrom.

We desire to combine the outlet tube with the pump piston for purposes of economy of space in use and economy of material in the construction of the device.

In the drawing herewith Fig. 1 is a central longitudinal section through a container with our pump mounted thereon.

Fig. 2 is a broken vertical section illustrating the pump in elevation and from another angle.

The container l issho'wn as a metal container, cylindrical on its outer periphery. The ends of the cylindrical portion are tapered inwardly for a short distance at '2. The lower end wall 3 is of the full diameter of the container and has a downwardly tapered rim 4 to engage the tapered end 2 on the outer wall to which it may be sealed by welding, soldering or other preferred The bottom wall 3 is shown as formed with a central depression at 5 to receive the last of the liquid when the container is being emptied.

The upper end wall 6 of the container is formed and sealed to the side wall at 4 as was the lower wall. Centrally of the wall 6 is an opening to receive a circular supporting bushing 1 which has a radial rim to engage over the margin of the opening at its upper end. This rim may be welded at 8 to the upper wall to form a seal therewith. The bushing projects downwardly into the container and has a lower inwardly extending flange 9.

The pump cylinder lfl is secured at its upper end to an annular plate I l and projects into the container a suitable distance. Its lower end is closed by a cap 12 having a central opening to allow the pump tube M to pass. A seal is made about said tube by means of the stufling box l3 set in the lower end of the cap. There is a check valve in the cap at one side to allow air to pass into the container, but preventing passage of fluid intothe cylinder.

The plate I I has a radial flange engaging above a packing ring It in the bushing l to form a seal at that place. A ring-shaped nut I1 is threaded into the bushing above the plate II to clamp the plate against the seal ring l6.

Centrally of the plate I I is an opening to receive the pump tube l4. Said tube has a handle at its upper end which acts also as an outlet for the liquid. 'Said handle includes a short T l8 the lateral branch of which receives an outlet pipe 5 l9. Said pipe has a swivel connection with the T l8 and is sealed about by the stufiing box 20. As will be seen in Fig. 2, this pipe I9 is curved to form a spout to deliver the beer or other liquid to a glass or other small container.

The T I8 has a valve seat therein to receive a valve member 22 on the valve stem 23 which is screwed at 25 into the upper end of the connection. Said stem has a stufling box 2| about it to provide a seal. There is a handle 24 upon the stem to work the valve and also to reciprocate the pump.

The T l8 may besecured temporarily in the plate H by a threaded connection 26 or by some equivalent means.

The pump tube M has a piston thereon in the cylinder l0. Said piston includes a head 21 welded to the tube. There is a cup 28 oi leather or composition, the lip of which is inclined downwardly. Said cup is held in position on the head by a nut 29.

In operation T I8 is unscrewed from the plate H and then the piston and tube l4 may be reciprocated by means of the handle 24. The

valve 22 will be maintained in closed position. 30 Air will thus be forced past the check valve l5 into the container and soon sufiicient pressure will be obtained in the container to force the liquid from said container. Thereafter the opening of valve 22 will allow the liquid to be forced from the spout l9. Whenever the air pressure gets low it may be'increased by further pumping. When pumping is not desired the pump may be locked by screwing the T l8 into the plate ll. 40

The pump is particularly compact and economical in construction, and is easily detachable. The handle 24 acts to operate the pump and to control the valve 22. The tube l4 may be extended so that, in its lowest position, it will engage in the depression 5 and thus elevate all the liquid from the container.

What we claim as new is:

1. A container, a cylinder extending therein, a tube extending through said cylinder and prd- O jecting beyond the same, said tube being unobstructed and open within said container, a piston on said tube within said cylinder and formed to force air into said container, a check-valve-controlled passage from said cylinder to said container for said air, a liquid-control valve in the upper end of said tube and a handle to control said liquid-control valve and also acting to reciprocate said tube and said piston.

2. A container, a cylinder projecting through a wall of said container into the interior thereof, a tube extending axially through said cylinder, and having an open lower end projecting below said cylinder, a piston on said tube in said cylinder and acting to force air into the container, said tube forming an outlet for liquid in said con.- tainer, a valve controlling said outlet and a handle for said valve acting also to reciprocate said tube and piston.

3. A container, 2. cylinder projecting through a wall of said container into the interior thereof, a tube extending axially through said cylinder;

a piston on said tube in said cylinder andiacting' to force air into the container, said tube forming. an outlet for liquid in said container, means sealing. the lower vend of the cylinder about said tube, a check-valve insaid sealing means allowing the passage of air to said container, a valve controlling said outlet and a handle for said valve acting also to reciprocate said tube and piston.

4. A pump including a cylinder adapted to be extended into a container, a tube axially of said cylinder and having an open and unobstructed lower end projecting through a stuffing box in said cylinder into said container, a check valve in the lower end of said cylinder, a piston on said tube in said cylinder, an outlet passage from the upper end of said tube, and means to control said passage and to serve as a handle in reciprocating said piston.

5. A pump including a cylinder adapted to form a fluid tight seal in the wall of a container, a tube. extending through said cylinder and projecting to a point near the bottom of said container, a piston on said tube within said cylinder and adapted to force air into said container, a

valve at the upper end of said tube and an out- 20 let controlled by saidfvalvel HAROLD W. FLETCHER.

FRANK BROGNIEZ'. 

